Examine source code of SEO Helper

{
  "manifest_version": 2,
  "name": "SEO Helper",
  "version": "1.0",
  "description": "Shows page title, description, canonical, schema (data structure), and lists headings.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "./icons/icon16x16.png",
      "32": "./icons/icon32x32.png",
      "192": "./icons/icon192x192.png",
      "512": "./icons/icon512x512.png"
    }
  },
  "icons": {
    "16": "./icons/icon16x16.png",
    "32": "./icons/icon32x32.png",
    "192": "./icons/icon192x192.png",
    "512": "./icons/icon512x512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "seo-helper@homayounmmdy",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}